Terraform Run fails on Terraform Cloud

[yurikoval]

Error:

Error: Unable to establish SSH connection
with provider["registry.terraform.io/aliksend/dokku"]
on main.tf line 21, in provider "dokku":
provider "dokku" {
Unable to establish SSH connection. ssh: handshake failed: open /home/tfc-agent/.tfc-agent/component/terraform/runs/run-yfzfd5ufoxnacRZY/.ssh/known_hosts: no such file or directory

[aliksend]

Hi. This error goes from goph and from ssh library.

Pleas recheck your configuration, did you specify correct ssh_host, ssh_port and ssh_user? Can you do ssh ssh_user@ssh_host -p ssh_port version and get something like dokku version 0.32.0? If no, then your configuration isn't valid.

[yurikoval]

I am able to deploy manually to dokku, and ssh command above works and returns dokku version 0.30.7.

[aliksend]

I’m working on a solution to this problem.

[aliksend]

@yurikoval Can you please check v1.0.16? I've added ssh_host_key attribute to set server public key explicitly and not rely on known_hosts file.

You need to get public key of your server using ssh-keyscan YOURSERVER. You can get multiple keys and, I'll be honest, I don't really know what key you should use. You can try every key locally to find the right one.

This key allows to validate that you use the server you expect, not the fake one (for example during man-in-the-middle attack).

[toanalien]

Hi @aliksend,

I have created a new pull request to add a feature that allows skipping the known host check. Please review it at your earliest convenience. #66

Thanks!